Cleaning brush device for condenser

Abstract

A dust cleaning device for condenser of cooler is provided. Since the dust from outside is attached to the condenser due to ventilation and they become one of reasons for compressor failure, the device is configured to clean the heat exchange fin of the condenser periodically, in which a wire winch and a cleaning brush is connected to a driving axle of a driving motor such that the cleaning brush performs up-and-down motion and rotation with a power of the driving motor and cleans the heat exchange fin. In other structure, pinion and rack can be connected to the driving axle to perform the up-and-down motion. The cleaning brush is made of textile or unwoven fabric. Furthermore, the cleaning brush further includes a plurality of long brush portions protruding above the cleaning brush.

What is claimed is: 
     
       1. A cooler cleaning device for a refrigerator having a condenser, the cooler cleaning device comprising: a cylindrical cleaning portion comprising a driving axle and a cleaning surface disposed over a plurality of heat exchange fins of the condenser; a plurality of long brush portions disposed on a plurality of selected locations of the cylindrical cleaning portion so as to protrude above the cleaning surface of the cylindrical cleaning portion and configured to reach and clean corners and nooks between the plurality of heat exchange fins of the condenser and to keep dust from being accumulated on the cylindrical cleaning portion; a wire winch installed at one end of the driving axle and configured to move the cylindrical cleaning portion through the driving axle up and down; and a driving motor engaged with the driving axle and configured to rotate the cylindrical cleaning portion around the driving axle, wherein the cleaning surface of the cylindrical cleaning portion contacts the plurality of heat exchange fins, wherein the cleaning surface is configured to clean dust stuck in the plurality of heat exchange fins by contacting with and rotating through the heat exchange fins, and wherein operational time and speed of the wire winch and the driving motor are controlled to optimize cleaning, a guide frame disposed on each side of the condenser, comprising a guide rail along an inner side, a wing, an engaging portion; and a carrying plate fixed to a delivering roll through a hinge axis, engaging and commuting up and down along the guide rail of the guide frame, wherein a fixing panel is fastened to the engaging portion of the wing of the guide frame, wherein a wire penetrating top and bottom plates of the fixing panel is fixed to an engaging clip and the wire is wound on the wire winch fixed to the driving axle, such that, as the wire winch rotated by the driving motor winds or unwinds the wire, the cleaning brush commutes up and down. 
     
     
       2. The cooler cleaning device of  claim 1 , wherein the cleaning surface of the cylindrical cleaning portion is made of textile fabric, unwoven, or brush. 
     
     
       3. The cooler cleaning device of  claim 2 , wherein stiffness and length of bristles of the brush is determined to optimize cleaning dusts stuck in small crannies and nooks. 
     
     
       4. The cooler cleaning device of  claim 1 , wherein a pinion is fixed to the driving axle of the driving motor disposed in the carrying plate and a rack is formed on an inner side of the fixing panel disposed in the guide frame so as to engage the pinion, such that the pinion commutes up and down along the rack by the rotation of the driving motor. 
     
     
       5. The cooler cleaning device of  claim 4 , wherein the cleaning brush is made of one selected from the group consisting of textile fabric or unwoven fabric. 
     
     
       6. The cooler cleaning device of  claim 1 , wherein the driving motor is configured to rotate first and second rotating directions, wherein the second rotating direction is a reverse rotating direction of the first rotating direction. 
     
     
       7. The cooler cleaning device of  claim 6 , wherein the driving motor rotates in the first rotating direction while the wire winch moves the cylindrical cleaning portion downward, and the driving motor rotates in the second rotating direction while the wire winch moves the cylindrical cleaning portion upward. 
     
     
       8. The cooler cleaning device of  claim 1 , wherein operation frequency and speed of the driving motor are controlled according to density of dust where the refrigerator is operated so as to optimize the operation of the refrigerator. 
     
     
       9. A cooler cleaning device for a refrigerator having a compressor and a condenser ( 100 ), the cooler cleaning device comprising:
 a guide frame ( 10 ) disposed on each side of the condenser ( 100 ), comprising a guide rail ( 11 ) along an inner side, a wing ( 12 ), an engaging portion ( 13 ); 
 a carrying plate ( 15 ) fixed to a delivering roll ( 14 ) through a hinge axis, engaging and commuting up and down along the guide rail ( 11 ) of the guide frame ( 10 ); 
 a driving motor (M) disposed on the carrying plate ( 15 ); 
 a wire winch ( 17 ) installed at a driving axle ( 16 ) of the driving motor (M); 
 a cleaning brush ( 18 ) connected to the wire winch ( 17 ) and configured to clean a surface of the condenser ( 100 ) by rotating driven by the driving motor (M); and 
 a plurality of long brush portions ( 40 ) disposed on a plurality of selected locations of the cleaning brush ( 18 ) so as to protrude above a cleaning surface ( 18 A) of the cleaning brush ( 18 ) and configured to reach and clean corners and nooks between a plurality of heat exchange fins of the condenser ( 100 ) and to keep dust from being accumulated on the cleaning brush ( 18 ), 
 wherein a fixing panel ( 20 ) is fastened to the engaging portion ( 13 ) of the wing ( 12 ) of the guide frame ( 10 ), 
 wherein a wire ( 22 ) penetrating top and bottom plates of the fixing panel ( 20 ) is fixed to an engaging clip ( 21 ) and the wire ( 22 ) is wound on the wire winch ( 17 ) fixed to the driving axle ( 16 ), such that, as the wire winch ( 17 ) rotated by the driving motor (M) winds or unwinds the wire ( 22 ), the cleaning brush ( 18 ) commutes up and down, 
 further comprising a stainless mesh ( 50 ) provided in front of the condenser ( 100 ), and wherein the cleaning brush ( 18 ) is configured to brush off the stainless mesh, 
 further comprising a dust scraper ( 60 ) disposed over the cylindrical cleaning portion, comprising a plurality of prongs ( 62 ), and configured for scraping off dust from the cleaning surface of the cylindrical cleaning portion and the plurality of long brush portions. 
 
     
     
       10. The cooler cleaning device of  claim 9 , wherein a pinion ( 30 ) is fixed to the driving axle ( 16 ) of the driving motor (M) disposed in the carrying plate ( 15 ) and a rack ( 31 ) is formed on an inner side of the fixing panel ( 20 ) disposed in the guide frame ( 10 ) so as to engage the pinion ( 30 ), such that the pinion ( 30 ) commutes up and down along the rack ( 31 ) by the rotation of the driving motor (M). 
     
     
       11. The cooler cleaning device of  claim 9 , wherein the cleaning brush ( 18 ) is made of one selected from the group consisting of textile fabric or unwoven fabric. 
     
     
       12. The cooler cleaning device of  claim 9 , wherein the driving motor (M) is configured to rotate first and second rotating directions, wherein the second rotating direction is a reverse rotating direction of the first rotating direction. 
     
     
       13. The cooler cleaning device of  claim 11 , wherein the driving motor (M) rotates in the first rotating direction while the wire winch ( 17 ) moves the cleaning brush ( 18 ) downward, and the driving motor (M) rotates in the second rotating direction while the wire winch ( 17 ) moves the cleaning brush ( 18 ) upward. 
     
     
       14. The cooler cleaning device of  claim 9 , wherein operation frequency and speed of the driving motor (M) are controlled according to density of dust where the refrigerator is operated so as to optimize the operation of the refrigerator.